sleep1 {alr3} | R Documentation |
Sleep in mammals
Description
Includes species averages for 62 mammals.
Format
This data frame contains the following columns:
- SWS
- Slow wave nondreaming sleep, hrs/day
- PS
- Paradoxical dreaming sleep, hrs/day
- TS
- Total sleep, hrs/day
- BodyWt
- Body weight in kg
- BrainWt
- Brain weight in g
- Life
- Maximum life span, years
- GP
- Gestation time, days
- P
- Predation index, 1=low,5=hi
- SE
- Sleep exposure index 1=exposed, 5=protected
- D
- Danger index, 1=least, 5=most
- Species
- Species of animal
Source
Allison, T. and Cicchetti, D. (1976).
Sleep in
Mammals: Ecological and Constitutional Correlates
Science, vol. 194, pp. 732-734.
References
Weisberg, S. (2005). Applied Linear Regression, 3rd edition. New York: Wiley, Section 6.2.
Examples
data(sleep1)
[Package
alr3 version 1.1.7
Index]